Finding the Third Proportional to 451,859 and 978,103

Step by Step Solution

1. Step 1: Write the proportion equation
   451,859 : 978,103 = 978,103 : x
2. Step 2: Convert to fraction form
   451,859/978,103 = 978,103/x
3. Step 3: Cross multiply
   451,859x = 978,103 × 978,103
4. Step 4: Simplify right side
   451,859x = 956,685,478,609
5. Step 5: Solve for x
   x = 956,685,478,609/451,859
6. Step 6: Final answer
   x = 2,117,221.25